Heel



FIG. 1 is a top front perspective view of the heel showing my new design;

FIG. 2 is a top rear perspective view thereof;

FIG. 3 is a right side elevation view thereof, with the left side elevation view being a mirror image thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings showing the heel in use illustrate environment and forms no part of the claim. 

CLAIM The ornamental design for a heel, as shown and described. 